Clamping and supporting tool for thin-wall parts

Abstract

The invention discloses a clamping and supporting tool for thin-wall parts, and relates to the field of clamping and supporting tools, the clamping and supporting tool comprises a box body part, a square inner groove is formed in the middle of one end of the box body part, a first clamping tool is arranged in the square inner groove, and the first clamping tool is of a frame type structure and is matched with the square inner groove in the box body part; a plurality of first inner grooves which are symmetrically distributed are formed in the peripheral wall of the first clamping tool, the first inner grooves are blind grooves, and clamping springs are fixedly installed at the bottoms of the first inner grooves; by means of the combined structure of a frame type / rod-shaped clamp, an elastic support and a process plate, traditional rigid clamping is replaced, clamping force can be evenly dispersed, plastic deformation during thin-wall part machining is effectively avoided, the size precision, shape tolerance and surface smoothness of parts are guaranteed, and the rejection rate of the parts is reduced; and meanwhile, damage to the inner wall caused by excessive supporting is prevented through the process plate (or the follow-up process plate), and the qualification rate of parts is further increased.

Description

TECHNICAL FIELD

[0001] The present application relates to clamping support tool technology, in particular to the clamping support tool of thin-walled parts. BACKGROUND

[0002] In modern industrial production, the performance and precision of parts are increasingly improved, and thin-walled parts are widely used in the fields of automobiles, aerospace, semiconductor equipment, etc., and the semiconductor equipment, as one of the most critical devices in integrated circuit manufacturing, has extremely high requirements on the manufacturing precision of parts. The size tolerance, shape tolerance and position tolerance of some key parts are controlled in microns, and the surface of the parts is required to be high.

[0003] Due to the structure and shape of thin-walled parts, the high-precision size requirement, and the deformation in the machining process, it is difficult to guarantee the size tolerance, shape tolerance and surface finish of the parts. Therefore, in view of the low machining efficiency and high scrap rate of such thin-walled parts, it is the innovative content of every technical personnel in the field of mechanical processing to research reasonable machining methods and improve product quality and production efficiency. SUMMARY

[0004] The purpose of the present application is to provide a clamping support tool for thin-walled parts to solve the problem of low machining efficiency and high scrap rate of thin-walled parts in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a clamping support tool for thin-walled parts, comprising a box body part, a square inner groove is formed in the middle of one end of the box body part, a first clamping fixture is arranged inside the square inner groove, the first clamping fixture is of a frame structure and is adapted to the square inner groove inside the box body part;

[0006] A plurality of symmetrically distributed first inner grooves are formed in the outer peripheral wall of the first clamping fixture, and the first inner grooves are blind grooves;

[0007] A clamping spring is fixedly installed at the bottom of the first inner groove, and a connecting top rod is fixedly connected to the end of the clamping spring away from the bottom of the first inner groove;

[0008] The end of the connecting top rod away from the clamping spring can abut against the inner wall of the box body part, and a flexible inner support is formed by the elastic action of the clamping spring;

[0009] A process plate can be selectively added between the connecting top rod and the inner wall of the box body part for preventing the clamping spring from being excessively supported;

[0010] The first clamping fixture can be repeatedly used, and thin-walled box body parts with similar sizes can be matched by adjusting the compression amount of the clamping spring or replacing the connecting top rod with different lengths. If the sizes of the box body parts differ greatly, the frame body of the first clamping fixture can be reprocessed according to the inner size of the new part, and the clamping spring and the connecting top rod can be reused.

[0011] Further, the number of the first inner grooves is several groups, and each group of the first inner grooves is uniformly distributed along the height direction of each face of the first clamping fixture, ensuring that the supporting force of the clamping spring and the connecting top rod on the box body part is uniform.

[0012] Further, the process plate is a flexible flat plate structure, and the material is damage-free matched with the inner wall of the square inner groove. The area of the process plate is not less than the abutting area of the connecting top rod and the inner wall of the part.

[0013] The clamping and supporting tool for thin-walled parts includes a long shaft part, a cylindrical inner groove is formed in the middle of one end of the long shaft part, and a second clamping fixture is arranged inside the cylindrical inner groove. The second clamping fixture is a rod-shaped structure and is matched with the cylindrical inner groove inside the long shaft part.

[0014] A plurality of second inner grooves are spirally distributed along the axial direction of the outer peripheral wall of the second clamping fixture. The second inner grooves are blind grooves.

[0015] A clamping spring is fixedly installed at the bottom of the second inner groove, and a connecting top rod is fixedly connected to the end of the clamping spring away from the bottom of the second inner groove.

[0016] The end of the connecting top rod away from the clamping spring is an arc-shaped structure, which is matched with the inner wall of the cylindrical inner groove and can be tightly abutted against the inner wall of the long shaft part by the elastic action of the clamping spring to form a flexible inner support.

[0017] A profiled process plate can be selectively added between the connecting top rod and the inner wall of the cylindrical inner groove. The shape of the profiled process plate is profiled with the inner wall of the cylindrical inner groove.

[0018] The second clamping fixture can be repeatedly used, and long shaft parts with similar sizes can be matched by adjusting the compression amount of the clamping spring or replacing the connecting top rod with different lengths. If the sizes of the long shaft parts differ greatly, the rod-shaped body of the second clamping fixture can be reprocessed according to the inner size of the new part, and the clamping spring and the connecting top rod can be reused.

[0019] Further, the number of the second inner grooves is several groups, and the spacing of each group of the second inner grooves along the axial direction of the second clamping fixture is uniform, ensuring that the supporting force is dispersed along the axial direction of the long shaft part.

[0020] Further, the arc radius of the profiled process plate is consistent with the inner wall radius of the cylindrical inner groove, avoiding the formation of gaps between the profiled process plate and the inner wall of the part, which leads to unstable support.

[0021] Further, the clamping spring has recoverable elasticity, can quickly reset after compression, and ensures stable supporting force after multiple uses.

[0022] Further, the end of the connecting top rod is free of burrs and sharp edges, avoiding scratching the inner wall of the thin-walled part when directly contacted.

[0023] Compared with the prior art, the clamping and supporting tool for the thin-walled part provided by the application has the following advantages

[0024] Beneficial effects:

[0025] 1. The combination structure of "frame type / rod type clamping tool + elastic support + process plate" replaces the traditional rigid clamping, can uniformly disperse the clamping force, effectively avoids plastic deformation of the thin-walled part during machining, ensures the dimensional accuracy, shape tolerance and surface finish of the part, and reduces the part rejection rate; meanwhile, the process plate (or the profiled process plate) prevents the inner wall damage caused by excessive support, and further improves the part qualification rate.

[0026] 2. The clamping tool has universality and reusability, similar parts with similar sizes can be adapted by adjusting the compression amount of the clamping spring or replacing the connecting top rod, without the need to customize a special clamp for a single part; when the sizes are too different, only the tool body needs to be reprocessed, and the clamping spring and the connecting top rod can be reused, which greatly reduces the clamp manufacturing cost and reduces the production investment.

[0027] 3. The clamping tool is convenient to assemble and disassemble, during clamping, the clamping tool is only embedded into the inner cavity of the part, and the elastic clamping spring is automatically used to realize the inner support fixation; during disassembly, the clamping tool can be directly taken out, without the need for complex bolt adjustment or gasket replacement, which can ensure the consistency of batch part clamping, avoid machining errors caused by clamping differences, and significantly improve the machining efficiency. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0029] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application;

[0030] Figure 2 The structure schematic diagram of the No. 1 clamping tool in the box body part provided by the embodiment of the present application;

[0031] Figure 3 The structure schematic diagram of the No. 1 clamping tool provided by the embodiment of the present application;

[0032] Figure 4 A schematic diagram of a first inner groove structure provided for an embodiment of the present application is shown in the figure.

[0033] Figure 5 A schematic diagram of a box part structure provided for an embodiment of the present application is shown in the figure.

[0034] Figure 6 A schematic diagram of a connecting ejector rod structure provided for an embodiment of the present application is shown in the figure.

[0035] Figure 7 A schematic diagram of a structure of a second clamp in a long shaft part provided for an embodiment of the present application is shown in the figure.

[0036] Figure 8 A schematic diagram of a long shaft part structure provided for an embodiment of the present application is shown in the figure.

[0037] Figure 9 A schematic diagram of a second clamp structure provided for an embodiment of the present application is shown in the figure.

[0038] Figure 10 A schematic diagram of a second inner groove structure provided for an embodiment of the present application is shown in the figure.

[0039] Explanation of reference signs:

[0040] 1, box part; 2, square inner groove; 3, first clamp; 4, first inner groove; 5, clamping spring; 6, connecting ejector rod; 7, long shaft part; 8, cylindrical inner groove; 9, second clamp; 10, second inner groove. DETAILED DESCRIPTION

[0041] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the accompanying drawings.

[0042] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 10 :

[0043] Example 1

[0044] The present application provides a clamping and supporting tool for thin-walled parts, which comprises a box part 1, a square inner groove 2 is formed in the middle of one end of the box part 1, and a first clamp 3 is arranged inside the square inner groove 2, the first clamp 3 is of a frame structure and is adapted to the square inner groove 2 inside the box part 1.

[0045] A plurality of first inner grooves 4 are formed in the outer peripheral wall of the first clamp 3, and the first inner grooves 4 are blind grooves;

[0046] A clamping spring 5 is fixedly installed at the groove bottom of the first inner groove 4, and a connecting ejector rod 6 is fixedly connected to the end of the clamping spring 5 away from the groove bottom of the first inner groove 4.

[0047] The number of the first inner grooves 4 is several groups, and each group of the first inner grooves 4 is uniformly distributed along the height direction of each face of the first clamping jig 3, so as to ensure that the supporting force of the clamping spring 5 and the connecting top rod 6 on the box part 1 is uniform;

[0048] The end of the connecting top rod 6 away from the clamping spring 5 can abut against the inner wall of the box part 1, and a flexible inner support is formed through the elastic action of the clamping spring 5;

[0049] The process plate can be selectively added between the connecting top rod 6 and the inner wall of the box part 1, so as to prevent the clamping spring 5 from over-supporting;

[0050] The process plate is a flexible flat plate structure, and the material is damage-free and suitable for the inner wall of the square inner groove 2. The area of the process plate is not less than the abutting area of the connecting top rod 6 and the inner wall of the part.

[0051] The first clamping jig 3 can be reused, and the thin-walled box parts 1 with similar sizes can be adapted by adjusting the compression amount of the clamping spring 5 or replacing the connecting top rod 6 with different lengths. If the sizes of the box parts 1 differ greatly, the frame body of the first clamping jig 3 can be reprocessed according to the inner size of the new part, and the clamping spring 5 and the connecting top rod 6 can be reused.

[0052] Working principle: first, the worker selects the tool from the "adaptability and support reference": according to the size of the square inner groove 2 of the box part 1, the frame type first clamping jig 3 is selected, the frame structure of which can completely embed the square inner groove 2 to provide overall support reference for the box part 1, avoiding the overall deviation of the part due to lack of rigid support during machining; at the same time, the frame type design reserves the space for the opening of the first inner groove 4, laying the foundation for the subsequent installation of the elastic support assembly;

[0053] Then, the worker builds an even support system through "symmetrical inner groove + elastic assembly", fixes the clamping spring 5 at the bottom of the first inner groove 4 of the first clamping jig 3, and then installs the connecting top rod 6. The first inner groove 4 is uniformly distributed along the height of each face of the clamping jig, which can ensure that the clamping spring 5 and the connecting top rod 6 apply support force from the periphery of the part simultaneously, avoiding local uneven stress leading to box depression; the worker tests the elasticity of the connecting top rod 6 by hand, and the clamping spring 5 can quickly reset after compression, which indicates that rigid clamping can be converted into flexible inner support through elastic deformation to prevent the part from being deformed due to rigid extrusion;

[0054] Then, the staff adjusts the support status and adds process plates according to the precision requirements of the parts. If the surface requirements of the box part 1 are high (such as parts for semiconductor equipment), the staff pastes a flexible process plate between the connecting top rod 6 and the inner wall of the part. The area of ​​the process plate is not less than the contact area. This can not only isolate the metal from direct contact to avoid scratches, but also prevent the inner wall of the part from being deformed due to excessive support by its own flexible buffering of the elastic force of the clamping spring 5. If there is a slight deviation between the size of the part and the clamping fixture, the staff adjusts the compression of the clamping spring 5 (slightly pushes the clamping fixture to adjust the embedding depth) or replaces the connecting top rod 6 with a different length so that the connecting top rod 6 just gently presses against the inner wall to ensure that the support force is uniform and not overloaded.

[0055] Subsequently, the staff completed the clamping and machining monitoring, fully embedding the adjusted No. 1 clamping fixture 3 into the square inner groove 2. The elastic force of the clamping spring 5 drives the connecting rod 6 to press against the inner wall of the part through the process plate, forming a stable and flexible inner support. After the staff fixed the part on the machining tool and started the equipment, they observed through the observation window that due to the symmetrical distribution of the No. 1 inner groove 4 and the elastic buffer of the spring, the part did not vibrate significantly, and the connecting rod 6 did not shift, ensuring machining accuracy. During the machining process, there was no need to frequently adjust the clamping fixture, reducing downtime.

[0056] Finally, the staff achieved the reuse and common use of tools. After the processing was completed, the staff pulled out the No. 1 fixture 3 and checked that the clamping spring 5 and the connecting rod 6 were undamaged. If the next processing is of a box part 1 with similar size, the existing fixture can be reused directly, and only the spring compression needs to be slightly adjusted. If the part size is too different, only the frame body of the No. 1 fixture 3 is reprocessed, and the clamping spring 5 and the connecting rod 6 can continue to be used, reducing tool costs and improving reuse efficiency.

[0057] Example 2:

[0058] This embodiment is basically the same as the previous embodiment, except that it includes a long shaft part 7, a cylindrical inner groove 8 is provided in the middle of one end of the long shaft part 7, and a second clamping fixture 9 is provided inside the cylindrical inner groove 8. The second clamping fixture 9 is a rod-shaped structure that fits the cylindrical inner groove 8 inside the long shaft part 7.

[0059] The outer peripheral wall of the No. 2 clamp 9 has several spirally distributed No. 2 inner grooves 10 along the axial direction. The No. 2 inner grooves 10 are blind grooves.

[0060] The number of No. 2 inner grooves 10 is several groups, and the spacing of each group of No. 2 inner grooves 10 along the axis of No. 2 clamping fixture 9 is uniform, so as to ensure that the supporting force is distributed along the axis of the long shaft part 7.

[0061] A clamping spring 5 is fixedly installed at the bottom of the second inner groove 10, and a connecting top rod 6 is fixedly connected to the end of the clamping spring 5 away from the bottom of the second inner groove 10.

[0062] The arc-shaped structure of the connecting top rod 6 far away from the clamping spring 5 is matched with the inner wall of the cylindrical inner groove 8, and can be tightly pressed against the inner wall of the long shaft part 7 by the elastic action of the clamping spring 5 to form a flexible inner support;

[0063] The optional profiled process plate can be added between the connecting top rod 6 and the inner wall of the cylindrical inner groove 8, and the shape of the profiled process plate is matched with the inner wall of the cylindrical inner groove 8;

[0064] The arc radius of the profiled process plate is consistent with the inner wall radius of the cylindrical inner groove 8, so that the profiled process plate and the inner wall of the part do not form a gap to cause unstable support;

[0065] The second clamp 9 can be repeatedly used, and long shaft parts 7 with similar sizes can be matched by adjusting the compression amount of the clamping spring 5 or replacing the connecting top rod 6 with different lengths. If the sizes of the long shaft parts 7 differ greatly, the rod-shaped main body of the second clamp 9 can be reprocessed according to the inner type size of the new part, and the clamping spring 5 and the connecting top rod 6 can be reused.

[0066] Working principle: first, the worker selects the matching tool according to the characteristics of the long shaft part 7, selects the rod-shaped second clamp 9 according to the size of the cylindrical inner groove 8 of the long shaft part 7, and the rod-shaped structure can be completely inserted along the axial direction of the cylindrical inner groove 8, which can match the slender structure of the long shaft part 7, and avoid local support loss caused by the shape of the clamp;

[0067] Then, the worker realizes the axial dispersed support through the "spiral inner groove + arc-shaped supporting rod", fixes the clamping spring 5 at the bottom of the second inner groove 10 of the second clamp 9, connects the arc-shaped structure of the connecting top rod 6, and the second inner groove 10 is evenly spaced along the axial direction of the clamp, which can disperse the support force along the axial direction of the long shaft part 7, and avoid part bending caused by local support concentration; the arc-shaped end of the connecting top rod 6 is matched with the inner wall of the cylindrical inner groove 8, has high adhesion, can uniformly transmit the support force to the inner wall of the part, reduces the unit area stress, and prevents the inner wall from being pressed;

[0068] Then, the worker optimizes the support stability and scratch prevention effect through the "profiled process plate", adds the profiled process plate between the connecting top rod 6 and the inner wall of the cylindrical inner groove 8, the arc radius of which is consistent with the cylindrical inner groove 8, which can completely adhere to the inner wall, avoid the gap between the process plate and the part to cause the support to shake; the profiled design can also increase the contact area, further buffer the elastic force of the clamping spring 5, prevent excessive support, and isolate metal contact to avoid the connecting top rod 6 scratching the inner wall of the part;

[0069] Subsequently, the worker completes the clamping and processing guarantee, inserts the second clamping fixture 9 into the cylindrical inner groove 8, and drives the connecting top rod 6 to abut against the inner wall through the profiled process plate to form a flexible inner support along the axial direction; the worker fixes the part on the lathe, and after starting processing, due to the dispersed support of the second inner groove 10 and the fitting of the arc-shaped abutting rod, the part has no radial runout, and the straightness is guaranteed; during processing, there is no need to frequently adjust the clamping fixture, improving the processing continuity;

[0070] Finally, the worker realizes the universality and reuse of the tool, after processing is completed, the second clamping fixture 9 is pulled out, and the clamping spring 5 and the connecting top rod 6 are not damaged; next time when processing a long shaft part 7 with similar size, the spring compression amount is directly reused and adjusted for adaptation; if the part size differs greatly, only the rod-shaped main body needs to be reprocessed, and the elastic component can be reused, reducing the cost of customizing special fixtures and improving efficiency.

[0071] Example Three:

[0072] This example is basically the same as the previous example, except that the clamping spring 5 has recoverable elasticity and can quickly reset after compression, ensuring stable support force after multiple uses;

[0073] The end of the connecting top rod 6 is free of burrs and sharp edges, avoiding scratching the inner wall of the thin-walled part when directly contacting.

[0074] Working principle: First, the worker checks the spring performance from the perspective of "long-term support stability" and selects a clamping spring 5 with recoverable elasticity. The worker repeatedly compresses and tests the spring by hand, and the spring can quickly reset after each compression without permanent deformation, indicating that it can maintain stable support force after multiple clamping, avoiding a decrease in support force due to spring fatigue, ensuring the consistency of batch part clamping, and reducing processing errors caused by fluctuations in support force;

[0075] Next, the worker eliminates the risk of scratching through "end treatment": check the end of the connecting top rod 6 to confirm that there are no burrs or sharp edges (if there are, polish them smooth with fine sandpaper). When the connecting top rod 6 abuts against the inner wall of the part, the smooth end can avoid scratching the thin-walled part with metal sharp edges, ensuring the surface finish of the part without the need for subsequent polishing, reducing the process;

[0076] Then, the worker completes the clamping in combination with the characteristics of the long shaft part 7, assembles the clamping spring 5 and the connecting top rod 6 to the second inner groove 10 of the second clamping fixture 9. Due to the stable elasticity of the spring, the worker only needs to adjust the compression amount once (so that the abutting rod lightly abuts against the inner wall) to ensure consistent support force during subsequent multiple clamping. The smooth end of the connecting top rod 6 cooperates with the profiled process plate to further reduce the risk of scratching, even if the part inner wall has high precision requirements, no additional protective measures are needed;

[0077] Subsequently, the worker realizes "stable support + efficient processing", and in the processing process, the recoverable elasticity of the clamping spring 5 ensures that the part is always in a stable support state, and the support is not loose due to spring deformation; the smooth end of the connecting ejector rod 6 avoids damage to the inner wall, and frequent shutdown for checking the part surface is not needed, improving the processing continuity; when batch processing, the clamping parameters of the same batch of parts do not need to be adjusted, ensuring the size consistency;

[0078] Finally, the worker improves the tool reuse life: after processing is completed, the worker recycles the clamping spring 5 and the connecting ejector rod 6, and because the clamping spring 5 has no fatigue deformation and the stopper has no burr wear, the two can be reused more than 50 times; even if the processed parts are replaced, as long as the size is similar, only a slight adjustment is needed to adapt, reducing the replacement frequency of the elastic component, reducing the cost of consumables, and at the same time improving the overall reuse efficiency of the tool.

[0079] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A clamping and supporting tool for thin-walled parts, comprising a box part (1) having a square inner groove (2) in the middle of one end, characterized in that, The square inner groove (2) is internally provided with a first clamping fixture (3), which is a frame structure and is adapted to the square inner groove (2) in the box part (1); The outer peripheral wall of the first clamping fixture (3) is provided with a plurality of symmetrically distributed first inner grooves (4), which are blind grooves; The first inner groove (4) is fixedly installed with a clamping spring (5) at the groove bottom, and the end of the clamping spring (5) away from the groove bottom of the first inner groove (4) is fixedly connected with a connecting top rod (6); The end of the connecting top rod (6) away from the clamping spring (5) can abut against the inner wall of the box part (1), and a flexible inner support is formed by the elastic action of the clamping spring (5); The connecting top rod (6) and the inner wall of the box part (1) can be selectively added with a process plate for preventing the clamping spring (5) from being excessively supported; The first clamping fixture (3) can be repeatedly used, and the thin-walled box parts (1) with similar sizes can be adapted by adjusting the compression amount of the clamping spring (5) or replacing the connecting top rod (6) with different lengths; if the sizes of the box parts (1) differ greatly, the frame body of the first clamping fixture (3) can be reprocessed according to the inner type size of the new part, and the clamping spring (5) and the connecting top rod (6) can be reused.

2. The clamping support tool for thin-walled parts according to claim 1, characterized in that, The number of the first inner grooves (4) is several groups, and each group of the first inner grooves (4) is uniformly distributed along the height direction of each face of the first clamping fixture (3), so as to ensure that the supporting force of the clamping spring (5) and the connecting top rod (6) on the box part (1) is uniform.

3. The clamping support tool for thin-walled parts according to claim 1, characterized in that, The process plate is a flexible flat plate structure, and the material is damage-free and adapted to the inner wall of the square inner groove (2), and the area of the process plate is not less than the abutting area of the connecting top rod (6) and the inner wall of the part.

4. A clamping and supporting tool for thin-walled parts, comprising a long shaft part (7) having a cylindrical inner groove (8) in the middle of one end, characterized in that, The cylindrical inner groove (8) is internally provided with a second clamping fixture (9), which is a rod structure and is adapted to the cylindrical inner groove (8) in the long shaft part (7); The outer peripheral wall of the second clamping fixture (9) is provided with a plurality of second inner grooves (10) which are helically distributed along the axial direction, and the second inner grooves (10) are blind grooves; The second inner groove (10) is fixedly installed with a clamping spring (5) at the groove bottom, and the end of the clamping spring (5) away from the groove bottom of the second inner groove (10) is fixedly connected with a connecting top rod (6); The end of the connecting top rod (6) away from the clamping spring (5) is an arc structure and is adapted to the inner wall of the cylindrical inner groove (8), and a flexible inner support is formed by the elastic action of the clamping spring (5) abutting against the inner wall of the long shaft part (7); The connecting top rod (6) and the inner wall of the cylindrical inner groove (8) can be selectively added with a profiled process plate, and the shape of the profiled process plate is profiled with the inner wall of the cylindrical inner groove (8); The second clamping fixture (9) can be repeatedly used, and the long shaft parts (7) with similar sizes can be adapted by adjusting the compression amount of the clamping spring (5) or replacing the connecting top rod (6) with different lengths; if the sizes of the long shaft parts (7) differ greatly, the rod body of the second clamping fixture (9) can be reprocessed according to the inner type size of the new part, and the clamping spring (5) and the connecting top rod (6) can be reused.

5. The clamping support tool for thin-walled parts according to claim 4, characterized in that, The number of the second inner grooves (10) is several groups, and the distance of each group of the second inner grooves (10) along the axial direction of the second clamping jig (9) is uniform, so that the supporting force is dispersed along the axial direction of the long shaft part (7).

6. The clamping support tool for thin-walled parts according to claim 4, characterized in that, The arc radius of the profiled process plate is consistent with the inner wall radius of the cylindrical inner groove (8), so that the gap between the profiled process plate and the inner wall of the part is avoided, and the instability of the support is avoided.

7. The clamping support tool for thin-walled parts according to claim 1 or 4, characterized in that, The clamping spring (5) has recoverable elasticity, and can quickly reset after compression, so that the supporting force is stable after multiple uses.

8. The clamping support tool for thin-walled parts according to claim 1 or 4, characterized in that, The end of the connecting top rod (6) is free of burrs and sharp edges, so that the inner wall of the thin-walled part is not scratched when directly contacted.

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